A062256 Record-setting values of q(n), the minimal prime q such that n(q+1)-1 is a prime p (i.e., q(n) > q(j) for all 0 < j < n).

2, 11, 41, 103, 433, 1019, 2423, 6131, 22391, 146519, 398339, 1461359, 2803139, 3943883, 11329061, 37133051, 72486287, 89857919, 152222051, 247964153, 316352087, 927830951, 2030767073, 5359478723, 8908239161, 11980112897, 17219108579, 20740431791, 27651446429

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..39

Matthew M. Conroy, A sequence related to a conjecture of Schinzel, J. Integ. Seqs. Vol. 4 (2001), #01.1.7.

Formula

a(n) = A060424(n)*(A062252(n)+1) - 1.

Example

31 = (433+1)/(13+1).

Crossrefs

Cf. A060324, A062251. Values of n are in A060424, values of q in A062252.

Sequence in context: A078746 A066593 A173580 * A378493 A024522 A144841

Adjacent sequences: A062253 A062254 A062255 * A062257 A062258 A062259

Keyword

nonn,nice

Author

N. J. A. Sloane, Jul 01 2001

Extensions

More terms from Vladeta Jovovic, Jul 02 2001

Status

approved